【摘要】 本文选择夏热冬暖地区、夏热冬冷地区和寒冷地区作为研究对象，建立了典型的办公建筑模型，对3个气候区中9个不同城市的多联机系统负荷和能耗进行了仿真，并进行了能效分析。结果表明，多联机系统负荷、系统耗电功率、性能系数（COP）及部分负荷率（PLR）平均值在不同气候区差异显著。夏热冬暖地区制冷工况、制热工况性能系数、PLR均大于寒冷地区、夏热冬冷地区。从寒冷地区到夏热冬暖地区，系统冷负荷及制冷耗电功率增大、热负荷及制热耗电功率不断减小。全年平均COP在不同气候区间都有十分明显的差异。寒冷地区和夏热冬冷地区的全年平均COP相差0.27，而夏热冬冷地区和夏热冬暖地区间相差0.59，证明不同气候区城市的办公建筑多联机能效有显著区别。更多还原

【Abstract】 Nine cities in 3 temperature zones(e.g., namely hot summer and warm winter regions, hot summer and cold winter regions and cold regions) as the research objects are selected in this paper, and a typical office building model with variable refrigerant flow(VRF) system is established, and the system load and energy consumption are simulated. The energy efficiency of VRF systems in different climate demarcation are evaluated and analyzed. The results show that cooling(heating) load, power consumption, average values of coefficient of performance(COP) and part load ratio(PLR) of VRF systems vary significantly in different climate regions. In hot summer and warm winter areas, the PLR and COP are greater than those in cold areas and in hot summer and cold winter areas. From cold regions to hot summer and warm winter regions, the cooling load and cooling power consumption of the system increase, while the heating load and heating power consumption decrease. The annual average COP difference between cold regions and hot summer and cold winter regions is 0.27, while the difference between hot summer and cold winter regions and hot summer and warm winter regions is 0.59. The result proves that that the evaluation standard for VRF system with demarcation is of research value.更多还原